function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}


jQuery(document).ready(function() {
    var size = readCookie("as_fontsize");
    var id = readCookie("as_tdid");
    if (size != null)
        jQuery("div.container").css("font-size",size);
    jQuery("#tz_small").click(function() {    
         jQuery("div.container").css("font-size","1.0em");
         createCookie("as_fontsize","1.0em");
         createCookie("as_tdid","#tz_small");
    });
    jQuery("#tz_medium").click(function() {    
          jQuery("div.container").css("font-size","1.2em");
          createCookie("as_fontsize","1.2em");
          createCookie("as_tdid","#tz_medium");
    });
    jQuery("#tz_large").click(function() {    
          jQuery("div.container").css("font-size","1.4em");
          createCookie("as_fontsize","1.4em");
          createCookie("as_tdid","#tz_large");
    });
});